.wrapper{
    width:1000px;
    margin: 0 auto;
}

.nav{
    position: relative;
    width:100%;
    height: 40px;
    background: #C70757;
    overflow: hidden;
    margin-top: 22px;
}

.nav ul li{
    text-align: center;
    float: left;
    height: 40px;
    line-height: 40px;
    font-size: 14px;
    color: white;
    width: 120px;
    position: relative;
    z-index: 1;
}

.nav ul li a{
    text-decoration: none;
    color: #ffffff;
    display: block;
    height: 40px;
}
.move-bg{
    position: absolute;
    width: 120px;
    height: 40px;
    background: #333333;
    z-index: 0;
    display: block;
}

